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IPC Main Group
C08F 128/00

Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon bond, and at least one being terminated by a bond to sulfur or by a heterocyclic ring containing sulfur

Introduced: July 1974

Last revised: January 2006

Classification Context

Section:
CHEMISTRY; METALLURGY
Class:
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
Subclass:
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS

Filing statistics

IPC C08F 128/00 belongs to the parent subclass C08F, which recorded 222,013 patent applications worldwide between 2013 and 2023. Annual filings grew from 17,478 in 2013 to 18,646 in 2023 (+7%), peaking at 21,807 applications in 2017. The most active applicants in class C08 are LG CHEM (14,262 applications), DOW GLOBAL TECHNOLOGIES (12,486 applications) and BASF (BADISCHE ANILIN & SODA FABRIK) (9,858 applications).

Source: EPO PATSTAT, worldwide filings

2 direct subcodes

Child Classifications

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Top Applicants

Top 10 applicants by patent filingsfor class C08, 2013–2023, worldwide · Source: EPO PATSTAT

  1. LG CHEM KR 14,262
  2. DOW GLOBAL TECHNOLOGIES US 12,486
  3. BASF (BADISCHE ANILIN & SODA FABRIK) DE 9,858
  4. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 7,877
  5. CHINESE ACADEMY OF SCIENCES 6,993
  6. FUJIFILM JP 5,049
  7. 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 4,923
  8. SHIN-ETSU CHEMICAL COMPANY JP 4,517
  9. BOREALIS AT 4,213
  10. ARKEMA FR 4,098